Final answer:
During transcription, covalent bonds known as phosphodiester linkages are formed between nucleotides.
Step-by-step explanation:
The types of bonds created between nucleotides during the process of transcription are covalent bonds, specifically phosphodiester linkages. These bonds are formed during a dehydration synthesis reaction, where a water molecule is produced as a hydroxyl group is removed from the 3' carbon of one nucleotide and a hydrogen atom is removed from the 5' carbon of another. This results in a solid structure that forms the backbone of the RNA molecule.